I am an Agatha Christie addict. I've read all the books cover to cover, multiple times. I've watched every film adaptation I can find. We get new Marple films (Geraldine McEwan/Julia McKenzie) regularly. But the David Suchet Poirot movies stopped a few years ago. We were tantalized with rumors of new Poirots, but none materialized. So I was delighted when Season 13 aired in October. But they are a little difficult to find. I'm happy to share links to watch
Watch Poirot Season 13 Labours of Hercules, The Big Four Free Online